“As we confront our own … trials and tribulations, we too can plead with the Father, just as Jesus did, that we ‘might not … shrink’—meaning to retreat or to recoil. Not shrinking is much more important than surviving! Moreover, partaking of a bitter cup without becoming bitter is likewise part of the emulation of Jesus” (Neil A Maxwell, Ensign, Nov. 1997, 22)
“No pain that we suffer, no trial that we experience is wasted. It ministers to our education, to the development of such qualities as patience, faith, fortitude and humility. All that we suffer and all that we endure, especially when we endure patiently, builds up our characters, purifies our hearts, expands our souls, and makes us more tender and charitable, more worthy to be called the children of God … and it is through sorrow and suffering, toil and tribulation, that we gain the education that we come here to acquire,” (Orson F. Whitney, quoted in Spencer W. Kimball, Faith Precedes the Miracle , 98).
“Therefore I command you to repent—repent, lest I smite you by the rod of my mouth, and by my wrath, and by my anger, and your sufferings be sore—how sore you know not, how exquisite you know not, yea, how hard to bear you know not. For behold, I, God, have suffered these things for all, that they might not suffer if they would repent; But if they would not repent they must suffer even as I; Which suffering caused myself, even God, the greatest of all, to tremble because of pain, and to bleed at every pore, and to suffer both body and spirit—and would that I might not drink the bitter cup, and shrink—Nevertheless, glory be to the Father, and I partook and finished my preparations unto the children of men,” Doctrine and Covenants 19:15–19.
"If God’s will [is healing], then that blessing could only be received if [I have] the faith not to be healed. In other words, [I] need to overcome, through the Atonement of the Lord Jesus Christ, the “natural man” tendency...to demand impatiently and insist incessantly on the blessings [I] want and believe [I] deserve," David A. Bednar, CES Devotional, 2013, University of Texas--Arlington.